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Trouble-shooting
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Normal Maintenance
Note: Do not attempt to repair this water heater yourself, call a service person for assistance.
Before these operation, the power supply needs to be shut off. The unit requires minimal
maintenance. However, to ensure consistent water flow, the following is recommended:
1, Periodically remove scale and dirt that may build up at the aerator of the faucet or in the shower head.
2, There is a built in filter screen at inlet connection which should be cleaned from time to time. Please turn
off the water flow before doing this.
Problems
Possible Cause
Corrective Actions
1. Inlet and outlet fittings leaking A. Fittings not tight
B. Rubber washer worn-out
A. Tighten fittings.
B. Replace rubber washer.
2. LED no signal
A. Power not connected.
B. LED damaged.
A. Connect power to the unit.
B. Change LED.
3. Functional keys not working
A. No water out from shower.
B. Water pressure too low.
C. Key or PCB damaged.
A. Open valve to get water.
B. Open valve to get pressure.
C. Replace key or PCB.
4. Water too hot
A. Too high temperature set.
B. Water flow too low.
A. Set a lower temperature.
B. Increase inlet water flow.
5. Water too cold
A. Low temperature set.
B. Water flow too high.
A. Set a higher temperature.
B. Reduce water flow.
6. Low water flow
Inlet strainer or shower clogged.
Clean strainer and shower.
Summary of Contents for RTEC-04 E03
Page 5: ...4 15 Electrical Diagram ...
Page 15: ...14 15 EX07200 119 ...
